Hello, I'm looking for an In-Ear solution with good isolation under 50 $. I am going to listen primarily audiobooks on the subway with them. For listening to music I use Fischer Amps FA-3 XB (with comply foams), which are lovely, however I do not want to carry around such expensive IE only for listening to audiobooks. I've oredered the Xiaomi MI Pro HD, but the isolation sucks. I can hear every sound which is a little bit louder. At least with the standard silicone buds. Now I am looking for an alternative. In the past I've used the Soundmagic E10, but I can't remember how good the isolation was. I don't want anything bulky or something that goes around the ear. I'd rather have something which looks like the FA-3 XB or the E10. I would like to use them with the standard buds and not with comply foams (I always have to spit on them before I put them in, because otherwise they break pretty fast). What would you recommend me? It would be also nice if it would be something which I don't have to order from China and wait weeks and week for it. Thank you for your help.